NASA's AIM spacecraft was mated to the Pegasus XL rocket on Wednesday. An integrated flight simulation is scheduled for early next week. Later that week, operations will begin for installation of the Pegasus fairing around the AIM spacecraft.

The Pegasus rocket with the AIM spacecraft is currently planned to be installed onto the transporter April 16. The L-1011 carrier aircraft is slated to arrive at Vandenberg Air Force Base the following day. Transporting Pegasus/AIM to the runway for mating operations with the carrier aircraft is scheduled for April 22.